by Elad SalomonsPosted on Posted in Papers and Research — No Comments ↓

With pumping systems accounting for about 20% of the world’s energy usage, a great potential for cost and energy savings exists within such systems. Unfortunately, pumping system design engineers work in an environment where budget and schedule constraints limit their ability to optimize their systems using traditional methods. “Optimizing Pumping Systems To Minimize First Or Life-Cycle Cost”, featured in the October 2002 issue of Pumps & Systems magazine, describes the new technology of IntelliFlowֲ® embodied in AFT Mercury that now allows the systems engineer to truly optimize the sizing of their systems’ piping and components resulting in huge savings potentials. Jointly authored by Trey Walters of AFT and Judy Hodgson of Dupont, the article also presents several real world examples where life cycle cost savings of up to 70% were achieved. The Pumps & Systems article was derived from “Optimizing Pumping Systems to Minimize First or Life-Cycle Cost”, presented to the 19th International Pump Users Symposium.

You can find the full text of this original paper by clicking here.

Pump Handbook: Third Edition

by Elad SalomonsPosted on Posted in Announcements, Commercial software — No Comments ↓

From MWH Soft news release:

MWH Soft announced the final phase of development of InfoWater UDF, a geocentric solution for unidirectional flushing of drinking water distribution systems. InfoWater UDF delivers power and flexibility in managing the systematic flushing of water distribution systems to remove stagnant water along with mineral and sediment deposits that have accumulated over time – restoring hydraulic capacity.

A pipe’s hydraulic carrying capacity will deteriorate with age, depending on the corrosive nature of the water and surrounding soils. Deposits may be formed on the pipe walls by precipitation, microbiological activity and corrosion. These accumulations increase hydraulic roughness and reduce the cross-sectional area and hydraulic carrying capacity of the mains. A loss in carrying capacity can lead to low pressures and inability to deliver fire flows, especially during high demand periods. Slow-moving water can also result in a loss of chlorine residuals at stagnant spots, creating a public health risk. Problems associated with water quality degradation are particularly acute in dead-end lines and low-demand portions of water distribution systems.

Unidirectional flushing (UDF) is the most effective way to clean water mains and maintain water quality and system capacity. It also requires the least amount of water of any cleaning method. UDF involves the closure of valves and opening of hydrants to create a one-way flow in the water mains that removes built-up sediment. This type of high-speed flushing (5 to 6 ft/sec) increases the swiftness of the water in the mains, maximizing the shear velocity near the pipe wall. This produces a scouring action in the mains, effectively removing sediment deposits and biofilm. Among its numerous benefits, UDF can help improve water quality by restoring the disinfectant residual, reducing bacterial regrowth, dislodging biofilms, removing sediments and deposits, controlling corrosion, restoring flows and pressures, eliminating taste and odor problems, and reducing disinfectant demand throughout the system. These benefits prolong the life expectancy of the distribution system and reduce the potential for waterborne disease outbreaks.

Full press release

by Elad SalomonsPosted on Posted in Announcements — 4 Comments ↓

A new forum to announce water related jobs from all over the world is now available here.

You can also find there the EPANET user list archive!

by Elad SalomonsPosted on Posted in Commercial software, Groundwater software — 2 Comments ↓

AquiferTest Pro v.3.5 is the latest software technology for graphical analysis and reporting of pumping test and slug data. This powerful yet easy-to-use program has everything you need to quickly and easily calculate the hydraulic properties of your aquifer using a comprehensive selection of pumping test and slug test solution methods for:

  • Confined aquifers
  • Unconfined aquifers
  • Leaky aquifers
  • Fractured rock aquifers

AquiferTest Pro 3.5 now includes 6 powerful forward/predictive solution methods. Forward solutions, also known as predictive analyses, represent a new methodology for analyzing pumping test data. Instead of matching field data (observed draw-down data) to a given set of curves, forward solutions allow you to calculate water levels/drawdown at any given point, based on estimated transmissivity and storativity. This allows you to

  • Optimize planning for future pumping well locations
  • Develop more effective pumping rates and durations
  • Understand the effects of well interference
  • Improve the design of pumping tests

Source and more info: Waterloo Hydrogeologic, Inc

by Elad SalomonsPosted on Posted in Free software, Water simulation Packages — 10 Comments ↓

You can calculate the waterhammer in pipelines by means of the flash-application in my www site:
www.waterhammer.de.tf

My other sites could be also useful for you:
www.bombas.de.tf
www.hydraulics.de.tf
www.velocidad.de.tf

Editor’s note: The programs work online, you can contact the software author via his web-page and get a stand alone version.

Water Hammer in Pipe-Line Systems (Developments in Water Science)

by Elad SalomonsPosted on Posted in Commercial software, Storm & Sewer software — 1 Comment ↓

ADS Environmental Services announces the release of their newest software Profile 3.0:

This powerful desktop software tool is an intelligent data manager that is easy to use and contains unsurpassed analytical tools. Designed for configuring, collecting, diagnosing, analyzing, and reporting flow and rainfall data from FlowSharkֳ” and other ADS monitors, it will also import data in CSV or Excel formats from most other meters.

Sneak peak at features of this desktop software:

  • Profile 3.0 contains graphical analysis tools (Hydrograph & scattergraph) which allow on-screen editing of data. This saves time and improves data quality.
  • Profile 3.0 is a desktop data warehouse which allows importing and exporting of data from other sources. This allows the user to house all data from a flow monitoring project in one location for analysis and reporting.
  • The user has the ability to schedule collection of data, changing time in meters, printing reports through the use of scheduled services.
  • Diagnostic and collect tools are in the same software package which saves time and prevents loss of data.
  • Site Dr.analysis is provided following collects in diagnostics, which aids the field person in trouble shooting monitor problems.
  • Provides the ability to ג€œsnapג€ velocity data points to a user defined pipe curve, which enables the user to make estimates when data is missing or flagged. This means less downtime and data is available for analysis. It saves time since the user does not have to use external spreadsheets for estimating missing data.
  • Ability to view several sites on one graph, allowing u/s & d/s comparisons. This aids in system wide balancing and gives the user the ability to draw conclusions from the data, e.g. rule out faulty equipment.
  • Profile contains functions for block editing of data, e.g. flagging data points above a preset level improving data quality and allowing some standardized editing practices.
  • Collects are performed via TCP/IP, modem or serially.
  • Collection of FlowSharks via a Telog 33-Ru is available.

For more information see Profile web-page.

by Elad SalomonsPosted on Posted in Books — 38 Comments ↓

This new book by Daniel P. Loucks and Eelco van Beek (UNESCO PUBLISHING) will be out soon at your near by store. In the meanwhile it can be downloaded free from Delft Hydraulics ftp.

The size of the file is about 400MB so before you go ahead with the download, look at this file here to see the introduction to the book.

Book contents:

  • Water Resources Planning and Management: An Overview
  • Water Resource Systems Modelling: Its Role in Planning and Management
  • Modelling Methods for Evaluating Alternatives
  • Optimization Methods
  • Fuzzy Optimization
  • Data-Based Models
  • Concepts in Probability, Statistics and Stochastic Modelling
  • Modelling Uncertainty
  • Model Sensitivity and Uncertainty Analysis
  • Performance Criteria
  • River Basin Planning Models
  • Water Quality Modelling and Prediction
  • Urban Water Systems
  • A Synopsis

If you decide that you want to download the files please drop me a note and I will send you the ftp information. I do not publish it here to avoid security risks.

Update: Eelco van Beek, one of the books authors updated me that they had to close the FTP-site because hackers got hold of it. The good news is that now the book can be ordered from the web-site of UNESCO-Publishing (20% off the regular price if you order by the end of April 2006 – ג‚¬40). The book can be also downloaded, as one file or a set of smaller files, from Delft web-site.

Update (01/11/2012): As commented below, the book is available online at http://hdl.handle.net/1813/2804

by Elad SalomonsPosted on Posted in Commercial software, Water simulation Packages — No Comments ↓

From KYPipe, LLC news release:

Designed to simplify the process of sizing Hydropneumatic Tanks for pressure regulation and pump cycle control Hydropneumatic Tanks are often used to control the cycling of pumps (on-off) in systems with little storage capacity.

With no Hydropneumatic Tank in these systems the pump will be required to start and stop constantly. This action places unnecessary stress on the pumps, consumes more electricity and produces pressure transients that can damage both the pumps and piping system. In addition the pump’s life will be considerably reduced.

By adding storage capacity (hydropneumatic tanks) the number of pump starts and stops can be minimized. Pumps will last much longer with greatly improved operations and reliability.

for more information see KYPipe web site.

by Elad SalomonsPosted on Posted in Storm & Sewer software — No Comments ↓

From MWH Soft press release:

MWH Soft announced the worldwide release of InfoSWMM Designer for ArcGIS. As a full-featured urban drainage network analysis and design program, InfoSWMM delivers the highest rate of return in the industry. All operations of a typical sewer system – from analysis and design to management functions like water quality assessment, pollution prediction, urban flooding, real-time control and record keeping – are addressed in a single, fully integrated geoengineering environment. The program gives users unprecedented strength in managing urban runoff and wet weather water quality problems in combined, sanitary and storm sewers, optimizing BMP and LID designs, and meeting SSO and CSO regulations.

For more information see MWH Soft web site.

by Elad SalomonsPosted on Posted in Water simulation Packages — 1 Comment ↓

The folks at Delft Hydraulics sent me a message that WANDA waterhammer program, since a few months ago can also automatically input EPANET files, thereby making it very easy to perform water hammer computations on distribution networks.

for more information see WANDA Transient web site.

Related book:
Water Supply and Pollution Control (7th Edition)